24iH – Engine Control Unit Short-Circuit May Cause Stall – 2022 Audi A6, A4, & Q5

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May 23, 2022 NHTSA CAMPAIGN NUMBER: 22V368000

Engine Control Unit Short-Circuit May Cause Stall

An engine stall can increase the risk of a crash.

 

NHTSA Campaign Number: 22V368

Manufacturer Volkswagen Group of America, Inc.

Components ENGINE AND ENGINE COOLING

Potential Number of Units Affected 72

 

Summary

Volkswagen Group of America, Inc. (Audi) is recalling certain 2022 Audi A6 Sedan, A4 Sedan, Q5, and Q5 Sportback vehicles. The semiconductor inside the engine control unit may short-circuit and cause an engine stall.

 

Remedy

Dealers will replace the engine control unit, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi’s number for this recall is 24iH.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Audi has a Recall

 


Affected Vehicles

Country Beginning Model Year Ending Model Year Vehicle Vehicle Count
USA 2022 2022 A4 SEDAN 1
USA 2022 2022 A6 SEDAN 3
USA 2022 2022 Q5 61
USA 2022 2022 Q5 SPORTBACK 7
CAN 2022 2022 A5 COUPE 1
CAN 2022 2022 A5 SPORTBACK 3
CAN 2022 2022 Q5 33
CAN 2022 2022 Q5 SPORTBACK 27

 

Problem Description

The engine control module (ECM) in affected vehicles may contain a semiconductor that was not produced according to manufacturing specifications. The insulation layer that is required to prevent short circuits within the semiconductor may be missing on these semiconductors. If this condition is present in the vehicle, it might cause a failure of the affected semiconductor, thus influencing fuel injection and engine operation. This could lead to a stalling condition, which could increase the risk of a crash.

 

Corrective

Action Replace the engine control module (ECM)

 

Code Visibility

On or about July 14, 2022, the campaign code will be applied to affected vehicles.

 

Owner Notification

Owner notification will take place in July 2022. Owner letter examples are included in this bulletin for your reference.

 

Repair Overview

Replace engine control module.

 

Start Guided Functions test plan:

Connect the Diagnostic Tester to the vehicle.

Select the “Engine Control Module, Replacing” test plan in Guided Functions.

Follow the on-screen prompts.

 

Replacing ECM (Q5, Q5 Sportback):

Open the retainers in direction of and remove the ECM -J623-<2>.

Disconnect the connectors <1>.

Install the new ECM in the reverse order of removal.

 

Replacing ECM (A4, A5 and A6):

Open the retainers in direction of and remove the ECM <2>.

Disconnect the connectors <1>.

Install the new ECM in the reverse order of removal.

 

Complete Guided Functions test plan:

Continue the “Engine Control Module, Replacing” test plan in Guided Functions.

Follow the on-screen prompts.

 


Chronology :

February 24, 2022: The supplier informed Audi AG about the delivery of engine control units that contain semiconducters which were not built according to manufacturing specifications.

February 25, 2022: The affected engine control modules still in production line were blocked.

March – April 2022: The issue is reported to the Audi Product Safety Committee. Investigation regarding potential safety impacts and affected parts and vehicle population commenced.

May 16, 2022: The Audi Product Safety Committee decides a voluntary worldwide safety recall due to the potential of an engine control unit failure while driving.

Audi is aware of one (1) warranty claim in the United States with an engine no-start due to this issue. The date of repair for the one vehicle claim is March 25, 2022.

 


3 Affected Products

Vehicles

MAKE MODEL YEAR
AUDI A4 2022
AUDI A6 2022
AUDI Q5 2022

 


10 Associated Documents

Recall Acknowledgement

RCAK-22V368-1438.pdf 645.913KB

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Defect Notice 573 Report

RCLRPT-22V368-2560.PDF 217.354KB

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Recall 573 Report – June 9, 2022

RCLRPT-22V368-8857.PDF 217.35KB

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Audi – Advance Notice to Dealers – Safety Recall 24iH / Engine Control Module (ECM)

RCMN-22V368-0973.pdf 239.622KB

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Remedy Instructions and TSB

RCRIT-22V368-3700.pdf 549.189KB

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Volkswagen – 24iH Audi Dealer Launch Notice – July 2022

RCMN-22V368-3859.pdf 221.296KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22V368-0621.pdf 165.466KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22V368-5137.pdf 153.135KB

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Issued Owner Notification Letter(Part 577)

RCONL-22V368-4412.pdf 153.135KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22V368-7587.pdf 165.466KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V368&docType=RCL

 


 

Reprogramming

Overview – Introduction

The Immobilizer is a theft-deterrent device that adds a layer of security to VWGoA vehicles that include the following brands: Audi, Bentley, Lamborghini, and VW. Certain repairs such as replacing emission parts cannot be performed without resetting the immobilizer code for the vehicle. This is done by a technician using the VAS for PC software to synchronize the immobilizer code embedded in the ignition key with other codes resident on parts such as the Transmission Control Module, Engine Control Module, and Instrument Cluster.

 

Before you can replace an emission part

Whenever you replace an emission-related control module, the immobilizer must be reset using the VAS for PC software. This can only be done if you meet the following requirements:

  • You have enrolled into the program (see step 1 - Complete Pass Thru Enrollment Forms)
  • You have received an email from VWGoA that contains a Security ID and Password to access the immobilizer application hosted in Germany
  • You have received an email from VWGoA that contains a certificate file (e.g. IndepeDeale.30001.300999.pfx)
  • You have installed the certificate onto your PC
  • You have obtained a J 2534-1 Pass Thru device (see recommended J 2534-1 Pass Thru devices)
  • You have performed the steps outlined in VAS for PC Setup

 

Recommended J 2534-1 Pass Thru devices

Pass thru devices are available for purchase from a recommended Manufacturer for registered workshops to perform Immobilizer functions. The Pass Thru devices that have been tested to work with VAS for PC follow:

 
  • I+ME Pass-Thru+XS

Available from ACTIA Corp.

https://www.actiaus.com, https://www.passthruxs.com or (734) 266-2083

24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light

Available from Drew Technologies, Inc. https://www.drewtech.com or (734) 222-5228

 
  • Blue Streak iflash Global Programmer

Available from Blue Streak Electronics https://www.bsecorp.com or (905) 669-4812 Email at Info@bsecorp.com

24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light

Available from Dearborn Group Technology https://www.dgtech.com or (248) 488-2080

Email at sales@dgtech.com

Note: Currently, Pass Thru re-programming supports SAE J2534-1 version 4.04 only. Please ensure that you have installed the appropriate driver for your Pass Thru device. For details read the documentation shipped with your device or contact the manufacturer.

Immobilizer-Reprogramming-Instructions

 

J2534 Pass Thru devices

24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light CarDAQ-Plus 3
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light CarDAQ-M Auto Universal Diagnostic Scanner and Programming Tool VSI J2534
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light CarDAQ-M Modular PassThru J2534
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light Drew Tech Mongoose Pro ISO-CAN
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light VSI J2534 ECU Reprogrammer & Diagnostic Adapter
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light Autel (AULMF2534) MaxiFlash Pro
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light BOSCH Automotive Tools MTECH2 Mastertech II J2534 VCI
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light Autel MaxiFlash VCI Vehicle Communication Interface J2534 PassThru ECU Programming Device Bluetooth Connection Internet Update Support CAN FD, 4 CAN Channels, DoIP, D-PDU Works with PC or Autel MS909
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light VXDIAG VCX Nano Compatible for GM/OPEL with GDS2 and Tech2WIN System Diagnostic Tool
24iH - Engine Control Unit Short-Circuit May Cause Stall - 2022 Audi A6, A4, & Q5 | small light GODIAG J2534

 

https://erwin.vw.com

https://erwin.audiusa.com

 


 

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